Hi Julia, I think reference tracks are up to your personal taste. Take any commercially produced track you like and compare your own tune’s sound to it. Then try to make changes (e.g. using eq) so that your piece gets closer to the track you like. I know it is hard to match the tracks made with huge resources in famous studios by skillful mixing and mastering engineers, but try to get as close as you can. Hans Zimmer is a big name in soundtracks but I don’t know whether his music is to your liking.
I took the liberty to download your track and made two versions of it. The first one is done in Logic Pro X using just Channel EQ (this is a default plug-in which comes with Logic) and Voxengo Tube Amp (this one can be downloaded free from the Voxengo site).
Julia In Memoriam Logic version
Here are the changes I made using EQ.
The Voxengo Tube Amp settings are below. I took the Master Warmer preset and adjusted Bias slightly.
And here’s the mastered version. I just took the Logic version above through my mastering chain without any changes in the settings (it is maybe a bit on the bright side).
Julia In Memoriam mastered version
So, basically the first version is doable in any DAW using just eq and voxengo plugin. I am not claiming that my versions are perfect in any sense. I did these quickly to show what I meant by warmth and more focus on low end. I think the low end is much more impactful in these versions (listen to the drum hits and the low synth for example). BTW, which DAW are you using?